Change the way video graphics adapter is selected

Instead of having (current)three command line switches -std-vga,
-cirrusvga and -vmwarevga, provide one -vga switch which takes
an argument, so that:
qemu -std-vga   becomes qemu -vga std
qemu -cirrusvga becomes qemu -vga cirrus
qemu -vmwarevga becomes qemu -vga vmware

Update documentation accordingly.

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5335 c046a42c-6fe2-441c-8c8c-71466251a162

qemu-doc.texi

@@ -955,11 +955,24 @@ images.
 @item -L path
 Set the directory for the BIOS, VGA BIOS and keymaps.
 
-@item -std-vga
+@item -vga @var{type}
-Simulate a standard VGA card with Bochs VBE extensions (default is
+Select type of VGA card to emulate. Valid values for @var{type} are
-Cirrus Logic GD5446 PCI VGA). If your guest OS supports the VESA 2.0
+@table @code
-VBE extensions (e.g. Windows XP) and if you want to use high
+@item cirrus
-resolution modes (>= 1280x1024x16) then you should use this option.
+Cirrus Logic GD5446 Video card. All Windows versions starting from
+Windows 95 should recognize and use this graphic card. For optimal
+performances, use 16 bit color depth in the guest and the host OS.
+(This one is the default)
+@item std
+Standard VGA card with Bochs VBE extensions.  If your guest OS
+supports the VESA 2.0 VBE extensions (e.g. Windows XP) and if you want
+to use high resolution modes (>= 1280x1024x16) then you should use
+this option.
+@item vmware
+VMWare SVGA-II compatible adapter. Use it if you have sufficiently
+recent XFree86/XOrg server or Windows guest with a driver for this
+card.
+@end table
 
 @item -no-acpi
 Disable ACPI (Advanced Configuration and Power Interface) support. Use

vl.c

@@ -7691,6 +7691,8 @@ static void help(int exitcode)
            "                use -soundhw ? to get the list of supported cards\n"
            "                use -soundhw all to enable all of them\n"
 #endif
+           "-vga [std|cirrus|vmware]\n"
+           "                select video card type\n"
            "-localtime      set the real time clock to local time [default=utc]\n"
            "-full-screen    start in full screen\n"
 #ifdef TARGET_I386
@@ -7769,8 +7771,6 @@ static void help(int exitcode)
            "-no-kqemu       disable KQEMU kernel module usage\n"
 #endif
 #ifdef TARGET_I386
-           "-std-vga        simulate a standard VGA card with VESA Bochs Extensions\n"
-           "                (default is CL-GD5446 PCI VGA)\n"
            "-no-acpi        disable ACPI\n"
 #endif
 #ifdef CONFIG_CURSES
@@ -7861,10 +7861,8 @@ enum {
     QEMU_OPTION_bios,
     QEMU_OPTION_k,
     QEMU_OPTION_localtime,
-    QEMU_OPTION_cirrusvga,
-    QEMU_OPTION_vmsvga,
     QEMU_OPTION_g,
-    QEMU_OPTION_std_vga,
+    QEMU_OPTION_vga,
     QEMU_OPTION_echr,
     QEMU_OPTION_monitor,
     QEMU_OPTION_serial,
@@ -7966,7 +7964,7 @@ const QEMUOption qemu_options[] = {
     { "g", 1, QEMU_OPTION_g },
 #endif
     { "localtime", 0, QEMU_OPTION_localtime },
-    { "std-vga", 0, QEMU_OPTION_std_vga },
+    { "vga", HAS_ARG, QEMU_OPTION_vga },
     { "echr", HAS_ARG, QEMU_OPTION_echr },
     { "monitor", HAS_ARG, QEMU_OPTION_monitor },
     { "serial", HAS_ARG, QEMU_OPTION_serial },
@@ -7990,8 +7988,6 @@ const QEMUOption qemu_options[] = {
 
     /* temporary options */
     { "usb", 0, QEMU_OPTION_usb },
-    { "cirrusvga", 0, QEMU_OPTION_cirrusvga },
-    { "vmwarevga", 0, QEMU_OPTION_vmsvga },
     { "no-acpi", 0, QEMU_OPTION_no_acpi },
     { "no-reboot", 0, QEMU_OPTION_no_reboot },
     { "no-shutdown", 0, QEMU_OPTION_no_shutdown },
@@ -8189,6 +8185,27 @@ static void select_soundhw (const char *optarg)
 }
 #endif
 
+static void select_vgahw (const char *p)
+{
+    const char *opts;
+
+    if (strstart(p, "std", &opts)) {
+        cirrus_vga_enabled = 0;
+        vmsvga_enabled = 0;
+    } else if (strstart(p, "cirrus", &opts)) {
+        cirrus_vga_enabled = 1;
+        vmsvga_enabled = 0;
+    } else if (strstart(p, "vmware", &opts)) {
+        cirrus_vga_enabled = 0;
+        vmsvga_enabled = 1;
+    } else {
+    invalid_vga:
+        fprintf(stderr, "Unknown vga type: %s\n", p);
+        exit(1);
+    }
+    if (*opts) goto invalid_vga;
+}
+
 #ifdef _WIN32
 static BOOL WINAPI qemu_ctrl_handler(DWORD type)
 {
@@ -8652,17 +8669,8 @@ int main(int argc, char **argv)
             case QEMU_OPTION_localtime:
                 rtc_utc = 0;
                 break;
-            case QEMU_OPTION_cirrusvga:
+            case QEMU_OPTION_vga:
-                cirrus_vga_enabled = 1;
+                select_vgahw (optarg);
-                vmsvga_enabled = 0;
-                break;
-            case QEMU_OPTION_vmsvga:
-                cirrus_vga_enabled = 0;
-                vmsvga_enabled = 1;
-                break;
-            case QEMU_OPTION_std_vga:
-                cirrus_vga_enabled = 0;
-                vmsvga_enabled = 0;
                 break;
             case QEMU_OPTION_g:
                 {